Thermostatic construction and gas passage for gas ranges



Feb. 24, 193 A sTocKsTRoM ET AL THERMOSTATIC CCNSTRUCTION AND GAS PASSAGE FOR GAS RANGES Filed Aug. 22, 1929 4 Sheets-Shes? 1 Feb. 24, 1931. A. STOCKSTROM ET AL 1,794,329

THERMOSTATIC CONSTRUCTION AND GAS PASSAGE FOR GAS RANGES Filed Aug. 22, 1929 4 Sheets-Sheet 2 m i a2 4 g -24,1931. ASTQCKSTRO'M gm. 1,194 329 THERMOSTATIC CONSTRUCTION AND GAS PASSAGE FOR GAS RANGES Filed Aug. 22, 1929 4 Sheets-Sheet 3 4, AJSTOCKSTROM ET AL 1,794,329

THERMOSTATIG CONSTRUCTION AND GAS PASSAGE FOR GAS RANGES File?1 22, 1929 4 Sheets-Sheet 4 Patented Feb. 24, E9351 ARTHUR srocxs'rnqn nine Isaac vnnnon an "m UGH, F ST. LOUIS, MISSOURI,

ASSIGNOBS T0 AMERICAN STOVE COMPANY, OF 81. LOUIS, MISSOURI, .nh COBPORA- Ell-ION OF NEW JERSEY THERMOSTATIC GONSTRUCTION 1.- 1

ens rsaen res. ens mess Application filed has as, race. Serial No. scares.

This invention relates to im rovements in thermostatic construction an gas. passage for gas ranges and the primary objwt of the improvement is to so construct and arrange 6 the parts that they are particularly adapted to be substantially concealed within the range structure.

A further object of the present ment is to construct the two passages or the 'lower portion in a horizontal plane and to construct the two assages for the vertical portion to lie in a substantiallyevertical plane, the upper end of the passages ing connected with a thermostatic housing, whereby the 15 lower passages are adapted to be concealed within the burner top housing and the vertical assages adapted to be concealed. in the oven be :0 ing adapt it to be connected with the upper ends of e vertical es whereby as flows therethrough, an to a that is concealed within the oven walls.

Further objects of the gresent improveas mentwillappear the we description.

Inthe:

to -v ng with part of the burner tdp removed showin 45 the arrangement of the gas passe and than in with the range housing.

Figure 2 is an enlarged vertical sectio view taken through the center of the thermostatic housing the valve being concealed with- 15 in the walls of the oven structure. I

Figure 3 is a vertical sectio view on the line 3-3 of hi 2 loa in the direction shown by arrow. Figure 4 is a side elevation of the 50 sages and the thermostatic ho.

imiprovefrom a point behind the range, its forward 7 A further object er the invention is to form a va V8 Figure 5 is a horizontal sectional view on the line 55 of Figure 4.

Figure 6 is a horizontal sectional view on the line 66 of Figure l.

Figure 7 shows a perspective view of a section of the gas passages showing their integral construction.-

Figure 8 is a perspective view of a range similar to Figure l, the structure being shown for use with a concealed manifold located in the burner top housing.

Referring now to the drawings, 1 is a range frame, 2 a cooking oven, 3 a broiling oven and 4 a burner located in the upper portion of the broiling oven. A gas supply pipe 5 extends portion 6 forming what is usually termed a manifold for the plurality of valves 7 that control the gas flow to the burners (not shown) that are located as usual under the burner top 8.

The present improvement ertains to a structure whereby gas is taken om the manifold and fed to the burner 4, the flow of gas to the burner bein automatically controlled by w a thermostat. gpecificall this improvement comprises a horizontal ousing 9 that is composed of two passageways 10, and 11 (see Figure 7) the said passageways integral, and these passageways are arranged side by side in horizontal elevation. Q

Gonnected with the inner end 12 of the horizontal housing 9 are two vertical passageways and 11 and these passageways are arranged one above the other, that is to say, in a vertical plane and they are preferably integral as shown. Connected with the upper end 1d of this housing 13 is a thermostatic housing Y .15. For the purpose of mg a tight joint between the lower end 16 of the vertical housing 13 there is located between the end or head 16 of the vertical passageways and the iii. end or head 12 of the horizontal passageways, a suitable gasket 17, placed between the joining ends oi the passageways l0 and 11 are suitable nip les 18. see parts are connec by a mlt 19 passing lly through the part 16 and screwed into the 12. By means of this bolt the 1? and the nipples 18 tightly cl or compressed as the case may be, thus making a gas tight joint between the passageways 10 and 11 of the horizontal and vertical housings 9 and 13. Likewise the upper end 14 is connected with the lower end 15 of the thermostatic housing by means of a bolt 20 by means of which a gas tight joint is made between'the housing 13 and the lower end of the thermostatic housing 15.

This housing 15 has a particular construction. It is provided with a vertical gas receiving housing 21 into which the gas flows from the inlet passageway 10 of the housing 13. This passageway 21 extends to the lower end of the housing. A wall 22 divides the lower portion of this housing into a horizontal passageway 23 through which the gas passes to the gas passageway 11 and from thence it flows to the outlet 24 and to the mixing tube 25 of the burner 4. A gas controlling valve 26 separates, the receiving passage way 21 of the housing from the outlet passageway 23 of the housing. That is to say, when the valve 26 is on its seat 27 it shuts 01f the flow of gas to the outlet passageway 23 but when the valve 26 is ofi its seat as in Fig ure 2, then gas flows from the receiving passageway 21 through the passageway 28 into the valve housing29 from which the gas then flows into the outlet passageway or chamber 23 to the passageway 11 of the vertical housing 13 as before explained.

The central wall or portion 30 at the lower end of the thermostatic housing 15 serves to separate the gas inlet receiving passageway or chamber 21 from the gas outlet passageway or chamber 23, and it is through this separating wall 30 that the bolt 20 passes for controlling and holding the upper end 14 of the housing 13 gas tight to the lower end of the thermostatic housing 15. v

Projecting inward from the upper end of the thermostatic housing is a thermostatic member 31 which extends into the upper forward portion of the oven 2 while its outer end 32 projects into the gas receiving chamber 21. A lever 33 has its upper end 34 engaging the adjacent end 32 of the thermostatic member 31 and its lower end 35 engaging a member 36 that has its outer end 37 resting in a socket 38 of the valve 26. On the outside of this lever 33 and adjacent its upper end is a suitable projection 39 that is in engagement with the inner end 40 of a screw shaft 41 that passes through the outer wall of the housing 15 and has a regulating wheel 42 attached to it. As shown, particularly in Figure 3, the lower end 35 of the lever 33 is bifurcated and passing through this bifurcated end is a pin 43 that has its outer end rigid in the housing 15, and its inner end 44 fittlng loosely in the member 37. -From this it will be understood that the member 37 is supported upon the pin 44 in its back and forth movement and that the valve 26 has a rocking movement so as to insure it being properly positioned on its seat 27 to make a tight gas closure. This rocking movement is due to the looseness of the 'member 37 on the pin 44 and the looseness of the'end 38 in the socket of the valve. A suitable coil spring 45 serves to cause the valve to be seated when the lever 33 moves outward.

In Figure 1 it will be observed that a sultable pipe 2 is connected to the inlet passageway 10 and the outer end of this pipe 2 is connected with a suitableivalve housing 3' and this valve housing is suitably connected with the manifold 6. The valve of this housing 3 is controlled by a suitable lever 4'. Therefore the gas may be turned on and cut off from the passageway 10 when it is desired to either light the said burner 4 or to extinguish it.

The construction of the present improvement has been explained when used withan exposed manifold 6. However this idea is broadly I capable of use with a concealed manifold 46 as shown in Figure 8. This manifold is enclosed within the housing 47 and the inlet passageway 10 is connected by a pipe 48 with a valve housing 49 that is connected with the said'manifold 46, the said valve being controlled by a suitable handle 50. The object of this valve construction is to permit the gas to be turned on and off as it flows through the passageway 10 and through the thermostatic housing and returns through the passageway 11 to the inlet 51 that is connected with the mixing tube 52 of the burner 4. It will be observed that in either case the structure is enclosed within the range housing.

In both cases a pilot light connection 53 is provided that is connected with the inlet assageway 10 and extends to the burner 4 for lighting the same. This pilot light will be of the well known construction and need not be further described, except to say that it is located between the housing 3 and the thermostatic housing in the construction shown in Figure 1, and between the inlet valve 49 and the thermostatic housing in the construction shown in Figure 8.

While we have explained in considerable detail the above improvement, we wish it understood that changes may be made without departing from the spirit of the invention so long as the are within a liberal interpretation of the ollowing claim.

Having thus described our invention what we claim and desire to secure by- Letters Patent is: G

The combination with a gas range having an open top burner portion, an elevated oven with a wall located in a vertical plane at one side of the top burner portion, a housing located at the upper inner side of the oven wall and containing means for thermostatically controlling the flow of gas through ing at their inner en the said housing, inlet and outlet pipes having their upper ends connected with the said housing, the pipes arranged one back of the other and extending downwardly and carryirf at their lower ends a horizontal housing, i et and outlet passa eways having a housoonnected with and forming part of the first said ho said passageways then extending outwar y and arran in a horizontal lane one back of the ot er, the outer ends o the said passageways connected respectively with the said oven burner and w1th a gas manifold, the parts arran d as describe STOCKSTROM. ISAAC VERNON BRUMBAUGH. 

